Provider Profile
Gregory J. Christie, PA-C
Unclaimed ProfileAbout Gregory Christie
Gregory J. Christie, PA-C is a physician assistant practicing in Andover, MA. Medicare claims data shows Gregory provided 248 services to 221 patients. The services billed most often include residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes, detection test by immunoassay with direct visual observation for influenza virus, and residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (978) 470-0707
- Email not available
Practice Locations
140 HAVERHILL ST SUITE 1
Andover, MA 01810
Procedures Most Often Billed to Medicare
248 services · 221 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99348 |
52 | As often as other peers in Physician Assistant |
| Detection test by immunoassay with direct visual observation for influenza virus | Lab test | 87804 |
42 | As often as other peers in Physician Assistant |
| Residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99342 |
39 | As often as other peers in Physician Assistant |
| Urinalysis, manual test | Lab test | 81002 |
34 | More often than most peers in Physician Assistant |
| Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) | Lab test | 87811 |
26 | As often as other peers in Physician Assistant |
| Residence visit for new patient with straightforward medical decision making, per day, if using time, at least 15 minutes | Office visit | 99341 |
23 | More often than most peers in Physician Assistant |
| Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes | Office visit | 99347 |
20 | Less often than most peers in Physician Assistant |
| Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99349 |
12 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What is Gregory J. Christie's specialty?
Gregory J. Christie is a physician assistant in Andover, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Gregory J. Christie?
Gregory J. Christie is listed at 140 Haverhill St Suite 1, Andover, MA 01810. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Gregory J. Christie?
The number on file is (978) 470-0707. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Gregory J. Christie?
Gregory J. Christie's National Provider Identifier is 1255323135. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Gregory J. Christie have?
Gregory J. Christie has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Gregory J. Christie known for?
According to Medicare billing data, Gregory J. Christie the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Gregory J. Christie's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory J. Christie. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.